Model WS-55909 Green light flashes won't go out. No TV

the green light blinking is normal if set has been unplugged--when set is plugged back it should blink for about 70 seconds and then go out--then you can try to turn it on---it is the DM unit inside the set booting up.

If the light just blinks and never stops you have likely bad caps in the DM unit---there are kits available for that.

The other possible reason is that so called reset switch may be bad--fairly easy way to find that out and it is more common than you would think, let me know if you have questions.

SD TECH

Thats caused by weak DM capacitors. They discharge when the set is unplugged even briefly then they cant recharge after getting power restored. You can get the Mitsubishi DM repair kit for your model at www.tvrepairworld.com which contains the caps and the CD with repair instructions.

Lamp could still be failing. If you need a spare anyway I would try a new one.

Open up the front, look under the right side picture tube. Look for puddle of oil on signal board. If you see this, it has bad picture tube & signal board. Not a good repair.

you're going to need to contact a tv technician. you're looking at about a 300-400 dollar repair

Thats a common problem caused by failed capacitors on the DM board. Usually after unplugging the set the capacitors drain down then when you plug it back in the Caps wont charge and you will get the constant blinking light. You can get the DM repair kit for your model at www.tvrepairworld.com under the mitsubishi repair kit catagory. The kit contains the Capacitors and the CD with instructions for the repair.

do this press and hold device and menu button on the front of set.. this is to retrieve a to digit error code flashed by the leds. also this set neds to "boot" let the led flash for at least 70 seconds. if it continues to blink the tv failed to boot. There is service bulliteens that states capacitors in power supply can be bad. this capacitors are kinda hard to get to and rather invovled to replace

I have a Mitsubishi MITWS-65813.
The green led light constantly blinks. I tried the reset button and green light is still blinking. I unplug the tv, waited a few days, then plugged the tv back in, the green light still blinks. I have a lot of experience with soldering. Do you have any suggestions or can send repair directions/protocol for the DM board.
via email? Thank you in advance for your help. Your help is much appreciated!

Good Day, charliek1;
This a very common problem with model. Don't listen to other comments unless the use the correct replacement parts.

SYMPTOM: Power LED does not stop blinking after plug in.

CURE: replace C9B01, C9B02,C9B10, and C9B11 (1000 uFD 16V) on the DM PCB. Replace them with part # 181P734030 (680uFd 16V).

The DM Board (PCB) is located on the very left side of the TV looking from back. Caution on removing Board and note what cables you disconnect to access the Metal Shielded Board.
Good Luck, big IRISH.

You need to replace the 1000uf capacitors on the DM board thats the classic symptom of the DM caps being bad the light continues to blink repeatedly. If you need more info on the repair let me know.